👉 The term "planetoids" is a name for small and rocky objects that orbit planets in our solar system. These objects are thought to be remnants of the early formation of the solar system, after the formation of the terrestrial planets had already occurred. Planetoids have been identified by various methods including spectroscopy, geology, and even by their own gravitational effects on other celestial bodies. They can vary in size from a few meters (20 miles) to about 1,500 kilometers